Mathc matrices/a81
Installer et compiler ces fichiers dans votre répertoire de travail.
|
c00e.c |
|---|
/* ------------------------------------ */
/* Save as : c00e.c */
/* ------------------------------------ */
#include "v_a.h"
/* ------------------------------------ */
#define RCA RC4
/* ------------------------------------ */
void fun(void)
{
double **A = rE_mR(i_mR(RCA,RCA),999,+1.E-3);
double **sinhA = i_mR(RCA,RCA);
double **coshA = i_mR(RCA,RCA);
double **sinhA2 = i_mR(RCA,RCA);
double **coshA2 = i_mR(RCA,RCA);
clrscrn();
sinh_mR(A, sinhA);
cosh_mR(A, coshA);
printf(" sinhA :");
p_mR(sinhA,S8,P4,C6);
printf(" coshA :");
p_mR(coshA,S8,P4,C6);
stop();
clrscrn();
pow_mR(2, sinhA, sinhA2);
pow_mR(2, coshA, coshA2);
printf(" sinhA2 :");
p_mR(sinhA2,S8,P4,C6);
printf(" coshA2 :");
p_mR(coshA2,S8,P4,C6);
sub_mR(coshA2,sinhA2,A);
printf(" I = coshA**2 -sinhA**2 ");
p_mR(A,S8,P4,C6);
f_mR(A);
f_mR(sinhA);
f_mR(coshA);
f_mR(sinhA2);
f_mR(coshA2);
}
/* ------------------------------------ */
int main(void)
{
time_t t;
srand(time(&t));
do
{
fun();
} while(stop_w());
return 0;
}
/* ------------------------------------ */
/* ------------------------------------ */
SinhA = + A + (1/3!) A**3 + (1/5!) A**5 + (1/7!) A**7 + ...
CoshA = + I + (1/2!) A**2 + (1/4!) A**4 + (1/6!) A**6 + ...
Dans cet exemple je vous propose deux fonctions sinh_mR() et cosh_mR(), puis on vérifie une propriété de ces fonctions :
I = coshA**2 -sinhA**2
Exemple de sortie écran :
------------------------------------
Copy/Past into the octave window.
A=[
+0.6170,+0.9630,+0.8290,-0.7990;
-0.8750,+0.2740,-0.6240,-0.7260;
-0.9490,+0.1990,-0.5240,+0.9020;
+0.3820,-0.2960,-0.8550,+0.7330]
Press return to continue.
------------------------------------
sinhA :
+0.2146 +0.8186 +0.6265 -0.8283
-0.8622 +0.1971 -0.5423 -0.6433
-0.5174 +0.0929 -0.3827 +0.9124
+0.4605 -0.0363 -0.6258 +0.5427
coshA :
+0.2359 +0.5130 +0.0507 -0.4597
-0.2261 +0.6569 +0.0113 -0.2519
+0.1014 -0.5108 +0.3835 +0.3687
+0.6745 +0.0149 +0.1479 +0.7904
Press return to continue.
------------------------------------
sinhA2 :
-1.3653 +0.4253 -0.0308 -0.5823
-0.3706 -0.6940 -0.0369 -0.2565
+0.4270 -0.4739 -0.7991 +0.5148
+0.7039 +0.2920 +0.2080 -0.6345
coshA2 :
-0.3653 +0.4253 -0.0308 -0.5823
-0.3706 +0.3060 -0.0369 -0.2565
+0.4270 -0.4739 +0.2009 +0.5148
+0.7039 +0.2920 +0.2080 +0.3655
I = coshA**2 -sinhA**2
+1.0000 +0.0000 +0.0000 -0.0000
-0.0000 +1.0000 +0.0000 -0.0000
-0.0000 -0.0000 +1.0000 +0.0000
+0.0000 -0.0000 -0.0000 +1.0000
Press return to continue
Press X to stop